WO2016202568A1 - In-situ formation of polyurethane catalysts - Google Patents
In-situ formation of polyurethane catalysts Download PDFInfo
- Publication number
- WO2016202568A1 WO2016202568A1 PCT/EP2016/062203 EP2016062203W WO2016202568A1 WO 2016202568 A1 WO2016202568 A1 WO 2016202568A1 EP 2016062203 W EP2016062203 W EP 2016062203W WO 2016202568 A1 WO2016202568 A1 WO 2016202568A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reactive
- polyurethane
- epoxide
- polyisocyanate
- isocyanate
- Prior art date
Links
- 239000004814 polyurethane Substances 0.000 title claims abstract description 90
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 83
- 239000003054 catalyst Substances 0.000 title claims abstract description 79
- 238000010952 in-situ formation Methods 0.000 title description 3
- 239000000203 mixture Substances 0.000 claims abstract description 81
- -1 lithium halide compound Chemical class 0.000 claims abstract description 68
- 239000012948 isocyanate Substances 0.000 claims abstract description 67
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- 238000011065 in-situ storage Methods 0.000 claims abstract description 46
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- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- OMRDSWJXRLDPBB-UHFFFAOYSA-N N=C=O.N=C=O.C1CCCCC1 Chemical compound N=C=O.N=C=O.C1CCCCC1 OMRDSWJXRLDPBB-UHFFFAOYSA-N 0.000 description 1
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- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 1
- MSILJOYZYPRFDK-UHFFFAOYSA-N [4-[4-(sulfanylmethyl)phenoxy]phenyl]methanethiol Chemical compound C1=CC(CS)=CC=C1OC1=CC=C(CS)C=C1 MSILJOYZYPRFDK-UHFFFAOYSA-N 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Inorganic materials [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- VCCBEIPGXKNHFW-UHFFFAOYSA-N biphenyl-4,4'-diol Chemical group C1=CC(O)=CC=C1C1=CC=C(O)C=C1 VCCBEIPGXKNHFW-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- IFDVQVHZEKPUSC-UHFFFAOYSA-N cyclohex-3-ene-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCC=CC1C(O)=O IFDVQVHZEKPUSC-UHFFFAOYSA-N 0.000 description 1
- QSAWQNUELGIYBC-UHFFFAOYSA-N cyclohexane-1,2-dicarboxylic acid Chemical compound OC(=O)C1CCCCC1C(O)=O QSAWQNUELGIYBC-UHFFFAOYSA-N 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000007033 dehydrochlorination reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 150000004662 dithiols Chemical class 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 1
- WJSATVJYSKVUGV-UHFFFAOYSA-N hexane-1,3,5-triol Chemical compound CC(O)CC(O)CCO WJSATVJYSKVUGV-UHFFFAOYSA-N 0.000 description 1
- 150000001469 hydantoins Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 150000002440 hydroxy compounds Chemical class 0.000 description 1
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- ZMVMYBGDGJLCHV-UHFFFAOYSA-N n-methyl-4-[[4-(methylamino)phenyl]methyl]aniline Chemical compound C1=CC(NC)=CC=C1CC1=CC=C(NC)C=C1 ZMVMYBGDGJLCHV-UHFFFAOYSA-N 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- UWJJYHHHVWZFEP-UHFFFAOYSA-N pentane-1,1-diol Chemical compound CCCCC(O)O UWJJYHHHVWZFEP-UHFFFAOYSA-N 0.000 description 1
- 229920002755 poly(epichlorohydrin) Polymers 0.000 description 1
- 229920000768 polyamine Chemical class 0.000 description 1
- 150000003141 primary amines Chemical group 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical compound CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- UFDHBDMSHIXOKF-UHFFFAOYSA-N tetrahydrophthalic acid Natural products OC(=O)C1=C(C(O)=O)CCCC1 UFDHBDMSHIXOKF-UHFFFAOYSA-N 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- HFFLGKNGCAIQMO-UHFFFAOYSA-N trichloroacetaldehyde Chemical compound ClC(Cl)(Cl)C=O HFFLGKNGCAIQMO-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
- AVWRKZWQTYIKIY-UHFFFAOYSA-N urea-1-carboxylic acid Chemical group NC(=O)NC(O)=O AVWRKZWQTYIKIY-UHFFFAOYSA-N 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/225—Catalysts containing metal compounds of alkali or alkaline earth metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4808—Mixtures of two or more polyetherdiols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/58—Epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/6505—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6511—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38 compounds of group C08G18/3203
- C08G18/6517—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38 compounds of group C08G18/3203 having at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4014—Nitrogen containing compounds
- C08G59/4021—Ureas; Thioureas; Guanidines; Dicyandiamides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4014—Nitrogen containing compounds
- C08G59/4028—Isocyanates; Thioisocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1515—Three-membered rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/7806—Nitrogen containing -N-C=0 groups
- C08G18/7818—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
- C08G18/7831—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing biuret groups
Definitions
- the present invention relates to in-situ formation of a polyurethane catalyst.
- the present invention is further related to a process for making a polyurethane catalyst, to a composition comprising compounds suitable for making the in-situ polyurethane catalyst, to a reactive composition comprising the in-situ polyurethane catalyst, to a process for making such compositions, to a process for making polyurethane materials wherein the in-situ polyurethane catalyst according to the present invention is used and to polyurethane comprising materials made or obtainable from such reactive compositions.
- the present invention is further related to the use of the in-situ formed polyurethane catalyst according to the present invention for achieving a remarkably long pot-life in reactive compositions comprising polyisocyanate and isocyanate reactive compounds followed by a rapid cure once the in-situ formed polyurethane catalyst starts to react.
- the polyisocyanate reactive composition comprising the in-situ formed polyurethane catalyst according to the present invention is very suitable to make polyurethane materials in moldings.
- an in-situ formed polyurethane catalyst suitable for catalyzing the formation of polyurethane in a reactive composition comprising polyisocyanate compounds and isocyanate reactive compound is disclosed.
- Said catalyst is formed by combining in said reactive composition at least one lithium halide compound and at least one epoxide compound.
- the amount of epoxide to be used is such that the number of epoxide equivalents per isocyanate equivalents is from larger than 0 up to 0.095 and the number of moles of lithium halide per isocyanate equivalent ranging of from 0.0001-0.06.
- the polyisocyanate compounds are selected from a toluene diisocyanate, a methylene diphenyl diisocyanate or a polyisocyanate composition comprising a methylene diphenyl diisocyanate or a mixture of such polyisocyanate compounds.
- the number of moles of lithium halide per isocyanate equivalent is ranging from 0.0001- 0.06 moles per isocyanate equivalent, preferably from 0.00015-0.025 moles per isocyanate equivalent and more preferably from 0.0005-0.02 moles per isocyanate equivalent.
- the amount of epoxide to be used is such that the number of epoxide equivalents per isocyanate equivalents is from larger than 0 up to 0.095, preferably in the range 0.01 up to 0.095, more preferably in the range 0.03 up to 0.09.
- the isocyanate reactive compounds are selected from a polyester and/or polyether polyol having an average molecular weight of preferably 32-6000 and an average nominal functionality of preferably 1-8.
- the lithium halide is selected from lithium chloride and lithium bromide, most preferably the lithium halide is selected from lithium chloride.
- the epoxide compound(s) are selected from epoxide compounds which are liquid at room temperature.
- a reactive system comprising the in-situ polyurethane catalyst according to first aspect of the invention.
- the reactive system is made by combining at least a monool or polyol composition, at least one lithium halide compound, a polyisocyanate composition comprising the polyisocyanate compounds, and at least one epoxide compound in such an amount that the number of equivalents of epoxide equivalents per isocyanate equivalents is from larger than 0 up to 0.095 and the number of moles of lithium halide per isocyanate equivalent ranging of from 0.0001-0.06.
- the polyisocyanate composition used to make the reactive system of the invention has an average isocyanate value of 1 to 48 % by weight and preferably from 10 to 33 % by weight.
- the number of moles of lithium halide used to make the reactive system according to the invention is such that the number of moles of lithium halide per isocyanate equivalent is ranging from 0.0001-0.06, preferably from 0.00015-0.025 moles per isocyanate equivalent and more preferably from 0.0005-0.02 moles per isocyanate equivalent.
- the number of epoxide equivalents used to make the reactive system according to the invention is such that the number of epoxide equivalents per isocyanate equivalents is in the range from larger than 0 up to 0.095, preferably in the range 0.01-0.095, more preferably in the range 0.03-0.09.
- the isocyanate index of the reactive system according to the invention is in the range 60- 750, preferably in the range 70-400, more preferably in the range 80-150 and most preferably in the range 80-130.
- the reactive system according to the invention may further comprise additives such as other catalysts, blowing agents, surfactants, water scavengers, antimicrobial agents, fire retardants, smoke suppressants, UV-stabilizers, colorants, plasticizers, internal mould release agents, rheology modifiers, wetting agents, dispersing agents and fillers.
- additives such as other catalysts, blowing agents, surfactants, water scavengers, antimicrobial agents, fire retardants, smoke suppressants, UV-stabilizers, colorants, plasticizers, internal mould release agents, rheology modifiers, wetting agents, dispersing agents and fillers.
- a process for making the reactive system according to the invention comprises combining and dissolving the at least one lithium halide compound, the monool or polyol composition, the polyisocyanate composition, the at least one epoxide compound and optional further additives and/or fillers.
- the invention further discloses polyurethane comprising materials and a process for making said polyurethane comprising materials by allowing the reactive system according to the invention to react at elevated temperature of at least 50°C, preferably at least 80°C.
- the process for making a polyurethane comprising material according to the invention may further comprise before the step of heating the reactive system according to the invention at elevated temperatures a step of adding and mixing additives and/or to be bonded material(s) to the reactive system such as wood chips, wood dust, wood flakes, wooden plates; paper and cardboard, both shredded or layered; sand, vermiculite, clay, cement and other silicates; ground rubber, ground thermoplastics, ground thermoset materials; honeycombs of any material, like cardboard, aluminium, wood and plastics; metal particles and plates; cork in particulate form or in layers; natural fibers, like flax, hemp and sisal fibers; synthetic fibers, like polyamide, polyolefin, polyaramide, polyester and carbon fibers; mineral fibers, like glass fibers and rock wool fibers; mineral fillers like BaSC>4 and CaC0 3 ; nanoparticles, like clays, inorganic oxides and carbons; glass beads, ground glass, hollow glass beads; expanded or expandable beads; un
- the in-situ formed polyurethane catalyst according to the invention may be used for improving the pot-life of a reactive polyisocyanate system.
- the reactive composition (also referred to as 2-component reactive polyisocyanate system) comprising the in-situ formed catalyst according to the invention may also referred to in the text as "the curable composition”.
- the "isocyanate index” or “NCO index” or “index” is the ratio of NCO- groups over isocyanate-reactive hydrogen atoms present in a formulation, given as a percentage : psrcoi x 100 (%)
- the NCO-index expresses the percentage of isocyanate actually used in a formulation with respect to the amount of isocyanate theoretically required for reacting with the amount of isocyanate-reactive hydrogen used in a formulation. It should be observed that the isocyanate index as used herein is considered from the point of view of the actual polymerisation process preparing the material involving the isocyanate ingredient and the isocyanate-reactive ingredients. Any isocyanate groups consumed in a preliminary step to produce modified polyisocyanates (including such isocyanate-derivatives referred to in the art as prepolymers) or any active hydrogens consumed in a preliminary step (e.g. reacted with isocyanate to produce modified polyols or polyamines) are also taken into account in the calculation of the isocyanate index.
- isocyanate-reactive hydrogen atoms refers to the total of active hydrogen atoms in hydroxyl and amine groups present in the reactive compositions; this means that for the purpose of calculating the isocyanate index at the actual polymerisation process one hydroxyl group is considered to comprise one reactive hydrogen, one primary amine group is considered to comprise one reactive hydrogen and one water molecule is considered to comprise two active hydrogens.
- reaction system combination of components wherein the polyisocyanates are kept in one or more containers separate from the isocyanate-reactive components.
- average nominal hydroxyl functionality (or in short “functionality) is used herein to indicate the number average functionality (number of hydroxyl groups per molecule) of the polyol or polyol composition on the assumption that this is the number average functionality (number of active hydrogen atoms per molecule) of the initiator(s) used in their preparation although in practice it will often be somewhat less because of some terminal unsaturation.
- Liquid means having a viscosity of less than 10 Pa.s measured according to ASTM D445-l la at 20 °C.
- In-situ formed catalyst refers to a polyurethane catalyst which is formed once the required compounds being present in two separate streams of the 2- component reactive polyisocyanate system are combined and react with each other to form a new compound which is acting as a polyurethane catalyst.
- the two parts of the 2-component reactive polyisocyanate system are mixed with one another only briefly prior to the fabrication of the polyurethane material.
- Solid-life refers to the stability of the liquid 2-component reactive polyisocyanate system (e.g. the curable composition according to the invention) when stored under process conditions and is calculated as the period of time the reactive composition remains liquid after mixing the two parts of the 2-component reactive polyisocyanate system with or without subjecting the system to reaction-initiating conditions (such as subjecting to an elevated (mould) temperature).
- Polyurethane catalyst or "PU catalyst” as used herein refers to a catalyst being able to catalyse (promote) the reaction of isocyanate groups with isocyanate reactive groups such as but not limited to the formation of polyurethane groups from polyisocyanates.
- Figure 1 illustrates the isothermal rheology profile at 90°C for a 2-component reactive polyisocyanate system according to the present invention (example 4) and for comparable examples (examples 5, 6 and 7 without the in-situ formed catalyst).
- Figure 2 illustrates the curing exotherm starting from room temperature (RT) for a 2- component reactive polyisocyanate system according to the present invention (example 10) and for comparable examples (examples 11 , 12 and 13 using state of the art alkoxide PU catalysts).
- Figure 3 illustrates the curing exotherm starting from room temperature (RT) for a 2- component reactive polyisocyanate system according to the present invention (example 10) and for comparable examples (examples 14 and 15 using state of the metal based PU catalysts).
- Figure 4 illustrates the isothermal rheology profile at 90°C for a 2-component reactive polyisocyanate system according to the present invention (example 4) and for comparable examples (examples 5, 6 and 7 without the in-situ formed catalyst).
- Figure 4 is similar to Figure 1 but with another time scaling.
- FIG. 5 illustrates Differential Scanning Calorimetry (DSC) traces for a 2-component reactive polyisocyanate system according to the present invention (example 10) and for comparable examples (examples 13 (using a state of the alkoxide PU catalyst) and example 15 (using a state of the metal based PU catalyst)).
- DSC Differential Scanning Calorimetry
- Figure 6 illustrates the isothermal rheology profile at 90°C for a 2-component reactive polyisocyanate system according to the present invention (examples 4 and 16) and for comparable example 17 (having a too high ratio of number of epoxide equivalents per isocyanate equivalents (> 0.1)).
- an in-situ formed polyurethane catalyst is disclosed and a process for making said in-situ formed polyurethane catalyst.
- the pot-life of a polyisocyanate reactive system for making polyurethane comprising materials may be remarkably extended (longer) by using the in-situ formed polyurethane catalyst composition according to the invention, without negatively influencing the curing of the reactive system afterwards.
- By using classic polyurethane catalysts in a polyisocyanate reactive system there is an induction time of seconds to minutes, even at room temperature.
- a longer induction time also referred to as "pot-life" of the reactive composition
- this longer induction time is then followed by a rapid cure once the polyurethane catalyst is initiated.
- Alkoxides are known polyurethane catalysts which show rapid cure in a reactive mixture but without the additional benefit on pot-life. We have found a way to form (metal) alkoxides in-situ by combining the ingredients (compounds) required to form alkoxides in the reactive mixture. Once the critical amount of (metal) alkoxides is formed in the reactive mixture, the catalytic effect starts to take place immediately (rapid cure).
- the ideal viscosity of a RTM resin should be in the range 50 up to 200 cps (50 up to 200 mPas), preferably below 150 cps (below 150 mPas) for at least 35 seconds at processing temperature (typically referring to the mold temperature, which is e.g. 90°C) in order to be able to fill the reaction mold optimal at processing times.
- processing temperature typically referring to the mold temperature, which is e.g. 90°C
- the change in viscosity of the reactive mixture at processing temperature can be taken as an indication to determine the delay in reactivity of the reactive mixture.
- the present invention hence discloses a new polyurethane catalyst system which allows formation of a (metal) alkoxide catalyst in-situ which provides the extra benefit on extending pot-life.
- the in-situ formed polyurethane catalyst according to the invention is formed by combining in a reactive composition comprising polyisocyanate compounds and isocyanate reactive compounds at least following compounds:
- the amount of epoxide to be used is such that the number of epoxide equivalents per isocyanate equivalents is from larger than 0 up to 0.095, preferably in the range 0.01 up to 0.095, more preferably in the range 0.03 up to 0.09 and the number of moles of lithium halide per isocyanate equivalent ranging of from 0.0001-0.06.
- the amount of epoxide equivalents with respect to isocyanate equivalents is critical in this invention, a too high ratio of number of epoxide equivalents per isocyanate equivalents (> 0.1) will give a too quick reaction and the viscosity of the reactive mixture will increase too rapidly and not fall within the recommended viscosity range required for e.g. RTM applications.
- the reactive mixture comprising the in-situ formed polyurethane catalyst according to the invention has a good pot-life under ambient conditions. It is ideally suitable to make a polyurethane comprising material by allowing it to react at elevated temperature, preferably above 50 °C, more preferably above 80 °C.
- the polyisocyanate compound(s) according to the present invention may be selected from aliphatic and, preferably, aromatic polyisocyanates.
- Preferred aliphatic polyisocyanates are hexamethylene diisocyanate, isophorone diisocyanate, methylene dicyclohexyl diisocyanate and cyclohexane diisocyanate and preferred aromatic polyisocyanates are toluene diisocyanate, naphthalene diisocyanate, tetramethylxylene diisocyanate, phenylene diisocyanate, tolidine diisocyanate and, in particular, methylene diphenyl diisocyanate (MDI) and polyisocyanate compositions comprising methylene diphenyl diisocyanate (like so-called polymeric MDI, crude MDI, uretonimine modified MDI, compounds comprising biuret and/or allophanate groups and prepolymers having free isocyanate
- the NCO value of the reactive system according to the present invention may range from 1 to 48 % by weight and preferably ranges from 10 to 33 % by weight.
- the isocyanate reactive compound(s) according to the present invention may be selected from polyester and/or polyether polyols and/or monools having an average molecular weight of 32-6000 and an average nominal functionality of 1-8.
- Examples of such monools are methanol, ethanol, propanol, butanol, phenol, cyclohexanol and hydrocarbon monools having an average molecular weight of 32-5000 like aliphatic and polyether monools.
- polyols examples include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, trimethylol propane, sorbitol, sucrose, glycerol, ethanediol, propanediol, butanediol, pentanediol, hexanediol, aromatic and/or aliphatic polyols having more carbon atoms than these compounds and having a molecular weight of up to 8000, polyester polyols having an average molecular weight of 200-8000, polyether polyester polyols having an average molecular weight of 200-8000 and polyether polyols having an average molecular weight of 200-8000.
- Such monools and polyols are commercially available.
- Useful examples are Daltocel F555 and Daltocel F442, which are all polyether triols from Huntsman, and Voranol P400 and Alcupol R1610, which are polyether polyols from DOW and Repsol, respectively, and Priplast 1838 and 3196 which are high molecular weight polyester polyols from Croda, and Capa 2043 polyol, a linear polyesterdiol of average MW of about 400 from Perstorp, and K- flex polyols 188 and A308 which are polyester polyols from King Industries having a MW of about 500 and 430 respectively, and aromatic polyester polyols like Stepanpol PH56 and BC180 having average molecular weights of about 2000 and 600 respectively, and Neodol 23E which is an aliphatic monool from Shell.
- polyester and polyether polyols having an average molecular weight of 32-6000 and an average nominal functionality of 1-8.
- the amount of epoxide to be used is such that the number of epoxide equivalents per isocyanate equivalents is from larger than 0 up to 0.095, preferably in the range 0.01 up to 0.095, more preferably in the range 0.03 up to 0.09.
- the amount of lithium halide to be used in the reactive mixture is in the range 0.0001-0.06, preferably in the range 0.00015-0.025 moles lithium halide per isocyanate equivalent and most preferably of 0.0005-0.02 moles lithium halide per isocyanate equivalent and preferably is selected from lithium chloride and lithium bromide. Lithium chloride is most preferred.
- the lithium halide may be first dissolved in a solvent, said solvent may be selected from a solvent which is not reactive with NCO groups (preferred) or alternatively (les preferred) from solvents which are reactive with NCO groups like monools, polyols and water. Examples of solvents have been given further in this specification.
- the epoxide compound used may be selected from any epoxide which is liquid at process temperatures or at least dissolvable in one of the ingredients of the reactive composition.
- Polyglycidyl and poly( -methylglycidyl) esters obtainable by reacting a compound having at least two carboxyl groups in the molecule and, respectively, epichlorohydrin and ⁇ -methylepichlorohydrin. The reaction is expediently effected in the presence of bases.
- Aliphatic polycarboxylic acids can be used as the compound having at least two carboxyl groups in the molecule.
- examples of such polycarboxylic acids are oxalic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid and dimerized or trimerized linoleic acid.
- cycloaliphatic polycarboxylic acids such as, for example, tetrahydrophthalic acid, 4-methyltetrahydrophthalic acid, hexahydrophthalic acid or 4-methylhexa- hydrophthalic acid
- aromatic polycarboxylic acids such as, for example, phthalic acid, isophthalic acid or terephthalic acid, may be used.
- Polyglycidyl or poly( -methylglycidyl) ethers obtainable by reacting a compound having at least two free alcoholic hydroxyl groups and/or phenolic hydroxyl groups with epichlorohydrin or ⁇ -methylepichlorohydrin under alkaline conditions or in the presence of an acidic catalyst with subsequent treatment with alkali.
- the glycidyl ethers of this type are derived, for example, from acyclic alcohols, for example from ethylene glycol, diethylene glycol or higher poly(oxy ethylene) glycols, propane- 1 ,2-diol or poly(oxypropylene) glycols, propane- 1 , 3 -diol, butane- 1 ,4-diol, poly(oxytetramethylene) glycols, pentane-l ,5-diol, hexane-l ,6-diol, hexane-2,4,6-triol, glycerol, 1 ,1 ,1 -trimethylolpropane, pentaerythritol or sorbitol, and from polyepichlorohydrins.
- acyclic alcohols for example from ethylene glycol, diethylene glycol or higher poly(oxy ethylene) glycols, propane- 1 ,2-diol or poly(
- glycidyl ethers of this type are derived from cycloaliphatic alcohols, such as 1 ,4-cyclohexanedimethanol, bis(4-hydroxycyclohexyl)methane or 2,2- bis(4-hydroxycyclohexyl)propane, or from alcohols which contain aromatic groups and/or further functional groups, such as N,N-bis(2-hydroxyethyl)aniline or p,p'-bis(2- hydroxyethylamino)-diphenylmethane.
- cycloaliphatic alcohols such as 1 ,4-cyclohexanedimethanol, bis(4-hydroxycyclohexyl)methane or 2,2- bis(4-hydroxycyclohexyl)propane
- alcohols which contain aromatic groups and/or further functional groups such as N,N-bis(2-hydroxyethyl)aniline or p,p'-bis(2- hydroxyethylamino)-diphenylmethane
- the glycidyl ethers may also be based on mononuclear phenols, such as, for example, p-tert-butylphenol, resorcinol or hydroquinone, or on polynuclear phenols, such as, for example, bis(4-hydroxyphenyl)methane, 4,4'-dihydroxybiphenyl, bis(4-hydroxyphenyl) sulphone, l ,l ,2,2-tetrakis(4-hydroxyphenyl)ethane, 2,2-bis(4-hydroxyphenyl)propane or 2 ,2 -bis(3 ,5 -dibromo -4-hydroxyphenyl)propane .
- mononuclear phenols such as, for example, p-tert-butylphenol, resorcinol or hydroquinone
- polynuclear phenols such as, for example, bis(4-hydroxyphenyl)methane, 4,4'
- hydroxy compounds for the preparation of glycidyl ethers are novolaks, obtainable by condensation of aldehydes, such as formaldehyde, acetaldehyde, chloral or furfuraldehyde, with phenols or bisphenols which are unsubstituted or substituted by chlorine atoms or Ci-Cg-alkyl groups, such as, for example, phenol, 4-chlorophenol, 2- methylphenol or 4-tert-butylphenol. 3) Poly( -glycidyl) compounds, obtainable by dehydrochlorination of the reaction products of epichlorohydrin with amines which contain at least two amine hydrogen atoms. These amines are, for example, aniline, n-butylamine, bis(4-aminophenyl)methane, m-xylylenediamine or bis(4-methylaminophenyl)methane.
- aldehydes such as formaldehyde, acetal
- the poly( -glycidyl) compounds also include triglycidyl isocyanurate, N,N'-diglycidyl derivatives of cycloalkyleneureas, such as ethyleneurea or 1,3-propyleneurea, and diglycidyl derivatives of hydantoins, such as of 5,5-dimethylhydantoin.
- Poly(S-glycidyl) compounds for example di-S-glycidyl derivatives, which are derived from dithiols, such as, for example, ethane- 1,2-dithiol or bis(4-mercaptomethylphenyl) ether.
- Cycloaliphatic epoxides such as, for example, bis(2,3-epoxycyclopentyl) ether, 2,3- epoxycyclopentyl glycidyl ether, l,2-bis(2,3-epoxycyclopentyloxy)ethane or 3,4- epoxycyclohexylmethyl-3',4'-epoxycyclohexanecarboxylate.
- epoxides in which the 1,2-epoxy groups are bonded to different hetero atoms or functional groups; these compounds include, for example, the ⁇ , ⁇ , ⁇ - triglycidyl derivative of 4-aminophenol, the glycidyl ether-glycidyl ester of salicylic acid, N-glycidyl-N'-(2-glycidyloxypropyl)-5,5-dimethylhydantoin or 2-glycidyloxy- 1 ,3-bis(5,5-dimethyl- 1 -glycidylhydantoin-3-yl)propane.
- these compounds include, for example, the ⁇ , ⁇ , ⁇ - triglycidyl derivative of 4-aminophenol, the glycidyl ether-glycidyl ester of salicylic acid, N-glycidyl-N'-(2-glycidyloxypropyl)-5,5-dimethylhydantoin or 2-g
- epoxides are those mentioned in 1) and 2) and most preferred are those mentioned in 2).
- Suitable non-reactive solvents may be selected from solvents having no isocyanate-reactive groups, preferably selected from an organic solvent which is liquid at 20 °C. Solvents having a viscosity at 20°C of 3000 mPa.s or less as measured according to ASTM D445-l la are regarded as liquid solvents. Most preferred are organic, liquid solvents which are able to dissolve more than lmg of a certain lithium halide compound per litre solvent at 20 °C. Those skilled in the art can easily determine whether or not an organic liquid is suitable for use as solvent in the present invention, certainly with the above guidance.
- suitable solvents are esters (such as ethyl acetate, propyl acetate, propylene carbonate, phthalate esters), ketones (such as acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone), aliphatic hydrocarbons (such as cyclohexane, heptane), chlorinated hydrocarbons (such as chloroform, dichloromethane), aromatic solvents (such as benzene, toluene), ethers (such as dimethyl ether, diethyl ether, dioxane, tetrahydrofuran) and mixtures thereof.
- esters such as ethyl acetate, propyl acetate, propylene carbonate, phthalate esters
- ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone
- solvents are selected which have a low boiling point at ambient pressure or under vacuum (then they may be stripped off from the curable composition easily).
- the amount of solvent may vary between wide ranges.
- the lower limit is determined by the desired type and amount of lithium halide compound and its solubility in the selected solvent.
- the upper limit is determined by considerations of convenience and cost: the less the better.
- polyisocyanate composition comprising polyisocyanate compounds
- the number of epoxide equivalents per isocyanate equivalents is from larger than 0 up to 0.095, preferably in the range 0.01 up to 0.095, more preferably in the range 0.03 up to 0.095 and the number of moles of lithium halide per isocyanate equivalent ranging of from 0.0001-0.06.
- the polyisocyanate composition in the reactive system comprising the in-situ polyurethane catalyst of the invention preferably has an average isocyanate value of 1 to 48 % by weight and preferably from 10 to 33 % by weight.
- the reactive system comprising the in-situ polyurethane catalyst of the invention preferably has an isocyanate index is in the range 60-750, preferably in the range 70-400, more preferably in range 80-150 and most preferred in the range 80-130.
- the reactive system comprising the in-situ polyurethane catalyst of the invention may further comprise additives such as other catalysts, blowing agents, surfactants, water scavengers, antimicrobial agents, fire retardants, smoke suppressants, UV-stabilizers, colorants, plasticizers, internal mould release agents, rheology modifiers, wetting agents, dispersing agents and fillers.
- additives such as other catalysts, blowing agents, surfactants, water scavengers, antimicrobial agents, fire retardants, smoke suppressants, UV-stabilizers, colorants, plasticizers, internal mould release agents, rheology modifiers, wetting agents, dispersing agents and fillers.
- a process for preparing the reactive system comprising the in-situ polyurethane catalyst and use of the reactive system comprising the in-situ polyurethane catalyst for making a polyurethane comprising material is disclosed.
- the reactive system comprising the in-situ polyurethane catalyst of the invention is made by combining and/or dissolving at least one lithium halide compound(s) and a monool or polyol composition comprising isocyanate reactive compounds, a polyisocyanate composition comprising polyisocyanate compounds, at least one epoxide compound(s) and optional reactive or non-reactive solvents and/or further additives such as other catalysts, blowing agents, surfactants, water scavengers, antimicrobial agents, fire retardants, smoke suppressants, UV-stabilizers, colorants, plasticizers, internal mould release agents, rheology modifiers, wetting agents, dispersing agents and fillers.
- the reactive system comprising the in-situ polyurethane catalyst of the invention may be made by combining and/or mixing first a monool or polyol composition comprising isocyanate reactive compounds and at least one lithium halide compound optionally dissolved in a reactive or non-reactive solvent.
- the monool or polyol composition comprising the lithium halide compounds may then be combined with a polyisocyanate composition comprising polyisocyanate compounds in order to form a polyisocyanate prepolymer.
- at least one epoxide compound(s) is added to the reactive mixture in order to form the in-situ polyurethane catalyst.
- further additives may be added in the last step or in an additional step.
- the reactive system comprising the in-situ polyurethane catalyst of the invention may be made by forming two component systems which are then combined with each other.
- a first system is made by combining and/or mixing a monool or polyol composition comprising isocyanate reactive compounds and at least one epoxide compound(s) composition.
- a second system is made by combining and/or mixing a polyisocyanate composition comprising polyisocyanate compounds with at least one lithium halide compound(s).
- further additives may be added to either the first or second system.
- the first and second system are combined and/or mixed with each other, preferably at room temperature.
- further additives and/or fillers may be added in the last step or in an additional step e.g. to form a polyurethane comprising composite material.
- the reactive system comprising the in-situ polyurethane catalyst of the invention may be used for making a polyurethane comprising composite material.
- the process for making the polyurethane comprising composite material then starts with the step of adding and mixing additives and/or to be bonded material(s) to the reactive system before optionally heating the reactive system at elevated temperatures in order to cure the reactive system.
- the additives and/or to be bonded material(s) added to the reactive system may be selected from wood chips, wood dust, wood flakes, wooden plates; paper and cardboard, both shredded or layered; sand, vermiculite, clay, cement and other silicates; ground rubber, ground thermoplastics, ground thermoset materials; honeycombs of any material, like cardboard, aluminium, wood and plastics; metal particles and plates; cork in particulate form or in layers; natural fibers, like flax, hemp and sisal fibers; synthetic fibers, like polyamide, polyolefin, polyaramide, polyester and carbon fibers; mineral fibers, like glass fibers and rock wool fibers; mineral fillers like BaS04 and CaC03; nanoparticles, like clays, inorganic oxides and carbons; glass beads, ground glass, hollow glass beads; expanded or expandable beads; untreated or treated waste, like milled, chopped, crushed or ground waste and in particular fly ash; woven and non-woven textiles; and combinations of two or more of these materials
- the invention discloses the use of the in-situ formed polyurethane catalyst for improving the pot-life of a reactive polyisocyanate system for forming polyurethane comprising products.
- the reactive composition comprising the in-situ polyurethane catalyst according to the invention may be used in any polyurethane forming application where extended pot-life is beneficial for the process.
- the use of the in-situ formed polyurethane catalyst is especially useful in situations where the exotherm makes the cure temperature rise too quickly.
- the invention further discloses polyurethane comprising materials made using the reactive composition comprising the in-situ polyurethane catalyst according to the invention.
- polyurethane comprising materials are made by allowing the reactive composition of the invention react at elevated temperature of at least 50°C, preferably at least 80°C.
- Polyurethane comprising materials may include foamed and non-foamed, as well as elastomeric to glassy polyurethane comprising polyurethane materials.
- the polyurethane comprising materials according to the invention may be selected from polyurethane comprising rigid foams, polyurethane comprising flexible foams, polyurethane comprising elastomers (both thermoset and thermoplastic), polyurethane comprising non-foamed materials such as coatings, adhesives, binders and resins for composites).
- Arcol ® polyol 1004 PPG diol based polyol with a molecular weight of 425 g/mol ex Bayer
- Araldite, Suprasec, Jeffol, Arcol, Jeffox and Daltocel are trademarks of the Huntsman Corporation or an affiliate thereof and have been registered in one or more but not all countries.
- Example 1 5 wt% LiCl solution in Arcol ® polyol 1004
- Example 4 and comparative example 5-9 isothermal rheology time sweep measurements at 90°C
- the curing behaviour of the resin is followed by the complex viscosity increase versus time.
- the first viscosity data point after 35 seconds at 90°C for example 16 is 133 cps which is according to the present invention and falls within the recommended viscosity range for RTM applications.
- the first viscosity data point after 35 seconds at 90°C for example 17 is 470 cps which is not according to the invention and outside the recommended viscosity range for RTM applications.
- LiCl/epoxide combination is an efficient catalyst (example 4 versus comparative examples 6 and 7)
- Example 10 comparative example 11 -15, curing exo therm measurements
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EP16726544.6A EP3310834B1 (en) | 2015-06-18 | 2016-05-31 | In-situ formation of polyurethane catalysts |
PL16726544T PL3310834T3 (pl) | 2015-06-18 | 2016-05-31 | Tworzenie in-situ katalizatorów poliuretanowych |
MX2017016180A MX2017016180A (es) | 2015-06-18 | 2016-05-31 | Formacion in-situ de catalizadores de poliuretano. |
RU2018101693A RU2674477C1 (ru) | 2015-06-18 | 2016-05-31 | Образование полиуретановых катализаторов "по месту" |
US15/579,223 US10640601B2 (en) | 2015-06-18 | 2016-05-31 | In-situ formation of polyurethane catalysts |
CN201680035114.7A CN107787338B (zh) | 2015-06-18 | 2016-05-31 | 聚氨酯催化剂的原位形成 |
CA2989365A CA2989365C (en) | 2015-06-18 | 2016-05-31 | In-situ formation of polyurethane catalysts |
BR112017026744-6A BR112017026744B1 (pt) | 2015-06-18 | 2016-05-31 | Sistema de poliisocianato reativo de 2 componentes para a formação de poliuretano, processo para preparação de um material compreendendo poliuretano, e, material compreendendo poliuretano |
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EP (1) | EP3310834B1 (zh) |
CN (1) | CN107787338B (zh) |
BR (1) | BR112017026744B1 (zh) |
CA (1) | CA2989365C (zh) |
MX (1) | MX2017016180A (zh) |
PL (1) | PL3310834T3 (zh) |
RU (1) | RU2674477C1 (zh) |
WO (1) | WO2016202568A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020165135A1 (en) * | 2019-02-11 | 2020-08-20 | Basf Se | Acrylic copolymer capsule designed to open up at < 90°c for controlled release of in-situ forming pu/pir catalyst |
EP3929233A1 (de) | 2020-06-25 | 2021-12-29 | Evonik Operations GmbH | Reaktive polyurethan-zusammensetzungen |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US20220153908A1 (en) * | 2019-03-28 | 2022-05-19 | Basf Se | Process for producing polyurethane-polyisocyanurate elastomers, sealing materials and adhesives having a long pot life |
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WO2010121898A1 (en) * | 2009-04-21 | 2010-10-28 | Huntsman International Llc | Polyisocyanate composition |
WO2013098034A1 (en) * | 2011-12-28 | 2013-07-04 | Huntsman International Llc | Curable composition comprising a polyisocyanate composition |
WO2015078740A1 (de) * | 2013-11-29 | 2015-06-04 | Basf Se | Polyurethansystem mit langer verarbeitungszeit und schneller aushärtung |
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FR2934635B1 (fr) * | 2008-07-29 | 2010-08-13 | Technip France | Installation de conduite montante flexible de transport d'hydrocarbures pour grande profondeur |
KR101902610B1 (ko) * | 2011-11-22 | 2018-09-28 | 헌트스만 인터내셔날, 엘엘씨 | 에폭시 수지를 포함하는 경화성 폴리이소시아네이트 조성물 |
EP2687551A1 (en) * | 2012-07-17 | 2014-01-22 | Huntsman International Llc | Intermediate polyisocyanurate comprising materials |
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2016
- 2016-05-31 CN CN201680035114.7A patent/CN107787338B/zh active Active
- 2016-05-31 BR BR112017026744-6A patent/BR112017026744B1/pt not_active IP Right Cessation
- 2016-05-31 US US15/579,223 patent/US10640601B2/en active Active
- 2016-05-31 EP EP16726544.6A patent/EP3310834B1/en active Active
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- 2016-05-31 CA CA2989365A patent/CA2989365C/en active Active
- 2016-05-31 WO PCT/EP2016/062203 patent/WO2016202568A1/en active Application Filing
Patent Citations (3)
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WO2010121898A1 (en) * | 2009-04-21 | 2010-10-28 | Huntsman International Llc | Polyisocyanate composition |
WO2013098034A1 (en) * | 2011-12-28 | 2013-07-04 | Huntsman International Llc | Curable composition comprising a polyisocyanate composition |
WO2015078740A1 (de) * | 2013-11-29 | 2015-06-04 | Basf Se | Polyurethansystem mit langer verarbeitungszeit und schneller aushärtung |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020165135A1 (en) * | 2019-02-11 | 2020-08-20 | Basf Se | Acrylic copolymer capsule designed to open up at < 90°c for controlled release of in-situ forming pu/pir catalyst |
EP3929233A1 (de) | 2020-06-25 | 2021-12-29 | Evonik Operations GmbH | Reaktive polyurethan-zusammensetzungen |
Also Published As
Publication number | Publication date |
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CN107787338B (zh) | 2021-04-20 |
PL3310834T3 (pl) | 2021-10-25 |
US10640601B2 (en) | 2020-05-05 |
RU2674477C1 (ru) | 2018-12-11 |
EP3310834B1 (en) | 2021-03-31 |
EP3310834A1 (en) | 2018-04-25 |
BR112017026744B1 (pt) | 2022-03-29 |
CA2989365A1 (en) | 2016-12-22 |
MX2017016180A (es) | 2018-03-01 |
BR112017026744A2 (pt) | 2018-09-04 |
US20180179321A1 (en) | 2018-06-28 |
CA2989365C (en) | 2023-06-27 |
CN107787338A (zh) | 2018-03-09 |
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